Building muscle depends on several factors and isn't something that'll happen overnight after just one workout.

Just got back from a run and wondering what muscles you’ve been working? As you’ll have experienced first-hand, running works muscles all over your body. Here, we take a look at specifically which ...

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign up here to get it in your inbox. Whether you’ve been lifting for years or ...